Voltage-regulator.



No.834f/50. PATENTED OUT. 30,1906.

, T. M. PUSBY.

VOLTAGE REGULATOR.

APPLICATION FILED JULY19.1904.

W/TNE INVENTOR Mm BY v -MM ATTORNEYS PATENTED 0011 so, 1906.

T. M. PUSEY.

VOLTAGE REGULATOR.

APPLIOATION FILED JULY19,1904.

3 gHIlE'lS-SHEET 3.

. WITNESSES: INVENTOH Specification of Letters Katent.

SQUA RE, Pl) SNSYL VAN! A Patented. Got. 30, 1906.

Appliominn filwl July 19,1904 Serial No. 217.270.

To u-Z/ an?! m 2723 may mix/viva.-

Be it kz'iown that l, "lrn'mms M. lisicr'. n oilizon of the United Slates, and o. resident. oi Ronni-iii. Squnro, in. the con: F o1 Chester pom. ll out; in tho sccoi'npm 111g claims.

n oi oronc: to ho had so i s :1(won'ipom ing drawing forming a part of thi posinonlion, in which. similar ohsrnctors oi" iohw once inglionto rorrosponcling aris in all the figures.

l igure l a diagrmnrnaiic elevation of the genorol arrangement of tho rvgolntor including tho wiring. Fig. 2 is a vesi'timl {'onlrni section lhrough the solenoid 4 and parts in;- morliatoly adjacent i-lEQ'i'OLO. Fig. 3 is :1: Wk largecl vertical h'c-ignientnry section upon thrline 3 of 3 lookin in the, ("iron-Lion oi" tho arrow and showing 5 part oi the wntzual: mechanism for opening and closing ono oi the circuits. Fig. i is an olo'ml'irm of tho rheoslnt aml parts iininmlintoly comiic'rtnd thorswith, and Fig. 5 is a sevtion through tho some upon tho lino 5 5 of Fig. 4 lool .119; ioward the top of the shoot.

The mainv soionoid is shown at 4. The 5 10014 of th solenoid. is provided m5 its up per kind with n pinto-l, made. or 1np=1mtivoly thick for the purposov oi" supporting certain mechanical parks resting thereupon and hen. im'riter described, and at its other oml with a plate 4 A number of rods 5, threaded as shown, extend from the plate 4 down wardly through the plate 4 and are fitted with shrouded nuts 6 7, which are. a-ilziptod to turn thereupon. Resting upon tho m is a helical SOlBl'kOld 8, ind upon the nuts 7 is another helical solenoid 9, those. two solenoids being somowhntsnmlor. By running the nutsfi 7 upward. or downward the rospoctivo solenoids S 9 may be adjusted relatively to the main solenoid 4. The core of the main solenoid is shown at lo and is suspended from ahook 11, engaging a link 12, this link in turn roasting iipon fulcrum-hearings 13; carried by a rocking beam 14, this rocking henm being further provided with fnlorunn bearings 15, resting upon supporting-hrsokifl'S iii. l'oi'inlzrmd. rigidly with file plate a Hnngo l7, proviitlorl with slots 1 through Whiol puss screws H), which engage the hose 4:. l"h so t-SCYQXS nmy he loosened or tightened at will, so that the Hang: 1'? may be adjusted For the purpose of maintaining the spool 4 in proper alineinon't with the more 10, which iii-Logs vertically. I

Tho r king ivin 14- is provided with a rhronricrl portion 20, upon which is revolubly mounted weight. 21. The ends of the Tool heron are provided with terminals 2; 23, i n im. o vessels-24 containing aci'dw iiki oil water .66 2? or Qbher conducting liquid, ngageinnni' between the terminals 22 {UK}. tho liquid 26 2'? occurring" when the roclv ing brain l-lis tipped in the one direction or a other yon l certain limits, as will be soon from 'l. Eli) ncriorl lay Wires 30 31 (see Fig. 1) with. the r. sow o helical solenoids S 9. From the v viilorl wil :1 Winn-wheel 38, which engages mix-9d upon the motor 34, is proa. worm 3%), Wing thereby adapted. to actuate z. pulley ill, from which :i helngll. to tho rovolnhlc armature 42. I

From the oppositely-coilc5l rim, ings 33 35 wires 4-3 44- join a common Wire 45, which is oonnootcd with n brush 416 of the armature 4'3. Tho other brush 4? is connected by n wire 48 will). a wire 49. This last-nwntioned Wire is ooninooterl with a. rhoosta-t 50 by means oil a. binding st 51 and is HIS) connected 'wiiih no o. ting-dynamo 52; The rheostat 5i provided 'Wich another hindally spanking, the action of the arm 54 is the same thnt'of any other rheostat-nrm, its moveznoni. in one direction lnoreaslng the rosisimino of *U'ho rhooslt-a-t and m the opposlte ii. r: 955:

to the gear the arnmtt that when the 6 out 0 3.,

i'ru-zrel arm 5 the Worm-gear sun-ft of), but nor com pa lil-tlVQ rlgu tiveljf to orbolr Arm, 'Sl). the mnoimt 0 min Those mom bar) of mlgustoblo olu Mounted 11 p011 r Wl'llCll is in turn mounted upon ta bracket provilezl with an 16' n. contact-o0 engage it oontaot spring 63 tl nountorl upon the plate 4 and engage a limiting-stop 64-, as inrlir screw 61,

particularly in F Wire G t loads to t o coil 65 is connected provided. with a mono for tho purpose of iuoro inductance. A hand-switch 69 is provideo for tho wirofii and is used [or o;

The wire to is r with it Wire 7), which 2" old l to tho secondary closing the transformer 7 l.

ouit through the Wires '70 and 72 root flows from the sooou through the .VllSS and 2, a current from the Wire '70 (livu passes in parsrllel through tho oholtingmo While, therefore, the main current 'l'ro purpose of prevet. or other part or mo'vmnent ol: tlr:

H101 11611511111 Oil ll a ring g or decreasing rrninals of tl jrool the upper on ,ing unail'octo l by t with tho Wll'Q (i7 and tho cl1oking-oo1l s5 and 18 also 111 so wltll tho ltornati'ng; ouruolmroiil 4 I; i-ll mdary wind i1 econ-so solenoid 4, wire 70, lamp 75 back to second ary Winding 73. From this circuit a parallel circuit branches ell at the junction 4. and passes through. wire 67, switch 69, ind uctancecoil 65, and wire 66 to wire 70, where it rejoins the circuit.

' The normal position of the beam lei while the apparatus is idle is such that the righthand portion. 14 of the beam dowmwird. and rests upon the spring-contact 63, breaking contact between it and the contact-point 62 of the screw 61. When, therer'ore, the core 10 is raised, as above described, the beam 14 no longer engages the spring-contact 63, which thereupon raises and closes against the contact member 62. This action does not leave the circuit closed, for the reason that at this time neither of the members 23 touches its liquid 26 or 27.

voltage rises too high, the left-hand portion of the beam 14 tips, so that the member 23 engages the liquid 27, thereby completing the following circuit, which is in parallel with the circuit through. the field-winding 82: exciting-generator 52, wires 24- 85, metallic bracket 4' screw 6], spring 63, (see fig. 3,} wire 64, been]. 14, liquid 27, wire 31, helical solenoid. 9, wire 32, windii'ig of the motor 34, wire 43, wire 4L5,hrush 46, armature i2, brush 47, wire 48, and wire 49 back to the exciting-dyna1no 52. This starts up the motor 34, causing the armature thereof to revolve, and the armature sets in motion the train of gearing 4]., 40, 38, 3'7, and 59, thereby causing the arm 54. of the rheostat to move in a predetermined. direction, so as to increase the resistance through the rheostct 50. As the rheostat. controls the current passing through the :lield 82 of the main enerator 79 and as the resistance of the rheostut is thus varied, the current through the field 82 is cut down accordingly, with the re sult that the voltage passing through the main wires 81 and. through the transformer 71 is reduced to a. point approximating the normal. The circuit through the liquid 27, above described, also energizes the helical. solenoid 9, causing it to pull the core 10 downward. Were it not for the action of the helical solenoidv 9 the core might be drawn too suddenly upward, might rnce,* so to speak. The pull of the solenoid 9 upon the core 10 gently restores the beam 14. to a position approximating that which it normally occupies when the device is in action, the electrode 23 being raised out of the liquid If new from anv cause the voltage from the secondary winding decreases, the core 10 drops downward, so that the electrode- 22 is brought into engagement with the liquid 26. thus completed: encitingwlynumc 52, wire 84, wire 85, metallic bracket 4 contact members 62 63, wire c4, beam 14, electrode '22, liquid 26, wire 30, helical solenoid 8, wire If new the through the medium oi the rhcostat 50.

'ihe following shunucircuit is S, which thl-ireu ion exerts a gentle lifting no 1 tion upon the core l 0, so as to raise the same and also to prevent any racing action thereof due to the abrupt pull of the soleuoir'l l thereupon. The beam l4 again becomes approxirnntely level and contact between the electrode .22 and theelectrode :26 is hndrcu. it follows, therefore, that within remloriahlc limits, where the voltage is not subject to abrupt excessive variations, it is maintained approximately equal, the upparutus being selfgoverning. 0f cou the opposite movements of the arn'nttme 42 out o opposite movements of the rheostat-ariu 54., and consequently cut the resistance out or in, according to the direction of the armature 42, this direction bein governed according to whether the circuit completed tlu'oug'h the liquid 27 or through the liquid 26, or, in. other words, according to whether the hem: i4- tips in. one direc ion or the othcrf it will be ui'u'lerstood that the tendency of the solenoid 4 alone to raise the core 10 when the voltage becomes excessive and to allow the core to descend when the voltage drops too low is to complete the circuit through. the wires and 30, respectively, according to the intensity oi the current flowing through the main solenoid. 4. lit therefore necessarily follows that the tendency of the solenoid 4- is to keepthe beam 1% in such position as to maintain the voltage approximately uniform ll new from any cause there is a sudden and unusuel drop in the voltage of the main circuit, the core 19 plunges ownward and the beam 14 rocks, so that the electrode 22 penetrutes deeply the liquid 26', the motion of the beam 14% causing the spring 63 to descend and break contact with the screw 61,.s0 as to leave the circuit open through the windings 33 and 35 The spring 63 thus serves as a safety device. It is so adjusted as to allow the motor-current to be broken in csse there is it short circLut-on the generator or upon any part of the main line or in case of a dangerous overload tending to lower the potential to a critical degree or even in the event of a break in the circuit of the solenoid 4. The rheostat 50 is now powerless to move, so that suddenand abrupt drops in the potential are unable to disturb it] As the-armature 42 necessztrily has more or less n1o1'nentun1,-the helical coils S 9 me. be adjusted so as to pan tiell compensate or its mom-outrun Any sud en rise in potential is at once corrected 

